Filter housing for mask type air purifier



FIG. 1 is a front, right side perspective view of a filter housing for mask type air purifier showing our new design;

FIG. 2 is a rear, right side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a perspective view showing the design of FIG. 1 within a mask type air purifier.

The present design is a filter housing for mask type air purifier, which includes a plurality of horizontally long air intake holes so that sufficient air flows in both sides of the filter housing for mask type air purifier, and has an overall smooth front shape.

The broken lines shown in the figures depict portions of the filter housing for mask type air purifier that form no part of the claimed design. The broken lines showing portions of a mask type air purifier in FIG. 9 are for the purpose of illustrating environmental structure that forms no part of the claimed design. 

CLAIM The ornamental design for a filter housing for mask type air purifier, as shown and described. 